**2. Need for urban agriculture/importance of urban agriculture**

The proportion of the world's population living in cities is increasing dramatically. It is predicted that by 2030, the worldwide population of urban dwellers will be nearly 5 billion [3], and by 2050 it may reach 9 billion [4]. The increased rate of urbanization has important economic, social, and political implications: A large number of people residing in the cities can approach toward education and employment easily; they can trust the healthcare industry and can see cultural evolution. But this rapid growth of population is often integrated with communal challenges and also climate change: cities may fail to provide the basic facilities resulting in communal riots leading to inferior and undesirable living conditions. Therefore, in order to deal with the challenges of rapid urbanization, urban agriculture is in demand nowadays.

The need or importance of urban agriculture is broadly discussed with the following *advantages* associated with it [5].
